Finding the Fourth Proportional to 22,309.42, 30,778.50 and 14,243.37

Step by Step Solution

1. Step 1: Write the proportion equation
   22,309.42 : 30,778.50 = 14,243.37 : x
2. Step 2: Convert to fraction form
   22,309.42/30,778.50 = 14,243.37/x
3. Step 3: Cross multiply
   22,309.42x = 30,778.50 × 14,243.37
4. Step 4: Simplify right side
   22,309.42x = 438,389,563.55
5. Step 5: Solve for x
   x = 438,389,563.55/22,309.42
6. Step 6: Final answer
   x = 19,650.43